212442243423 has 8 divisors (see below), whose sum is σ = 283297056000. Its totient is φ = 141607796568.

The previous prime is 212442243413. The next prime is 212442243443. The reversal of 212442243423 is 324342244212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212442243423 - 2⁴ = 212442243407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212442243413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5067073 + ... + 5108826.

It is an arithmetic number, because the mean of its divisors is an integer number (35412132000).

Almost surely, 2^212442243423 is an apocalyptic number.

212442243423 is a deficient number, since it is larger than the sum of its proper divisors (70854812577).

212442243423 is a wasteful number, since it uses less digits than its factorization.

212442243423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182861.

The product of its digits is 73728, while the sum is 33.

Adding to 212442243423 its reverse (324342244212), we get a palindrome (536784487635).

The spelling of 212442243423 in words is "two hundred twelve billion, four hundred forty-two million, two hundred forty-three thousand, four hundred twenty-three".